How to use username as parameter to a url

[shlomita]

Hi,

A PHP program(index.php) creates a form (Ok), and I want to send him the user who was logged in to the wikis as a parameter.

I created a Markdown page and put in it:
`

<iframe src="https://my.url.com/index.php?user=<script>document.write(setUserName)</script>"  style="max-width:100%" name="myiFrame" scrolling="no" frameborder="1" marginheight="0px" marginwidth="0px" height="4000px" width="1500px" allowfullscreen></iframe>

`

I follow the link https://github.com/requarks/wiki/discussions/6583 and add to the file server/modules/analytics/matomo/code.yml the lines:

_paq.push(['setUserId', String(WIKI.$store.get('user/id'))]); _paq.push(['setUserName', String(WIKI.$store.get('user/name'))]); _paq.push(['setUserEmail', String(WIKI.$store.get('user/email'))]);

From the PHP I print $_GET["user"] and I nothing.

Do you know how I can check the variable set is okay? What is the way to do it right?

Thanks.